Campaign - Oil Filter Adapter Improperly Machined
Number: 93-C-01Date: February 1993
Section: 6A
Subject:
REMOTE ENGINE OIL - FILTER ADAPTER
Models/Years:
1992-1993 BRAVADA
CONDITION
General Motors has determined that certain 1992-1993 Oldsmobile Bravada trucks may have remote engine oil filter adapters that were improperly machined. This condition is internal to the adapter and would not give any outward indication of a problem. However, an improperly machine adapter could result in the engine oil not properly flowing through the oil filter and/or cooler (if equipped).
CORRECTION
To correct this condition, dealers are to replace the engine oil filter adapter, replace the oil filter and change engine oil on all involved vehicles.
VEHICLES INVOLVED
All 1992 Bravadas and 1993 Bravadas up to the ending breakpoint:
This recall affects both versions of the 4.3L engine (RPO LB4, VIN Code "Z" and RPO L35, VIN Code "W").
S.O.P. means "Start of Production", and E.O.P. means "End of Production".
DEALER ACTION
Dealers are to service all vehicles involved in this campaign, at no charge to owners, regardless of mileage, age of vehicle, or ownership.
Whenever a vehicle subject to this campaign is taken into your new or used car inveritory, or if it is in your dealership for service, you are to ensure the campaign correction has been made before selling or releasing the vehicle.
Dealers are to contact owners of vehicles recently sold from your new or used vehicle inventory and arrange for the campaign correction to be performed.
SERVICE PROCEDURE
1. Raise and support the hood.
2. Remove two wing nuts from the remote air cleaner box and move air cleaner box aside (L35, VIN Code W engine only).
3. Remove oil filter. Disconnect the engine oil lines from the adapter. Save the O-rings for possible re-use at re-assembly.
4. Disconnect the cooler oil lines from the adapter, if so equipped. Save the O-rings for possible reuse at re-assembly.
5. Remove the remote oil filter adapter from the body. Obtain a new remote oil fifter adapter assembly and install it to the body. The adapter assembly comes with the oil filter pre-installed and torqued.
6. Inspect the O-rings for cuts or imperfections. Replace as necessary, P/N 15564870.
7. Reconnect the cooler oil lines if so equipped. Reconnect the engine oil lines.
8. Drain the engine oil from the crankcase. Fill the crankcase with new oil (approximately 4-1/2 quarts).
9. Run the engine and inspect connections for leaks.
10. Install a Campaign Identification Label.
11. Close the hood.
CAMPAIGN IDENTIFICATION LABEL
Each label provides space to print the campaign number, and the five (5) digit dealer code of the dealer performing the campaign. Insert this information with a typewriter or ball-point pen. When installing label, clean and dry the surface of the radiator support tie bar and apply the campaign label where it is readily visible.
PARTS INFORMATION
50% of the anticipated required parts will be preshipped to dealers on or about the week of February 19, 1993. Both part number assemblies will be included in the shipment, if applicable. The parts will be charged to the dealer's open account.
To ensure parts are obtained as soon as possible, order them from GM Service Parts Operations (GMSPO) on a C.I.O. order, with NO special instruction code, but order on an advise code (2). Use the following part numbers:
NOTE:
The above assemblies consist of an adapter with an oil filter pre-installed.
The campaign printout sent to dealers with involved vehicles indicates which vehicles require P/N 10236273 ("A") and which vehicles require P/N 10236274 ("B"). After receiving the "preship" parts, order the balance of required parts accordingly.
WARRANTY CLAIM INFORMATION
Submit claims using only one of the "V" labor-operation numbers for each vehicle:
Parts allowance:
Current dealer price, plus 30% handling allowance.
Engine Oil cost may be applied for in the usual manner.